VolvoElectrical Parts

20576626 — Coolant Temperature Sensor 20576626 3944123 For Volvo Truck Fh12 Fh16 Fl6 Fm7 Fm12

This coolant temperature sensor accurately measures the engine coolant temperature, transmitting this vital data to the engine control module (ECM) for proper fuel and ignition management. Manufactured to meet Volvo's exacting standards, it offers superior durability and precision compared to a worn or failing sensor that can cause inaccurate readings. Operators may observe fluctuating temperature gauge readings, poor engine performance, or increased fuel consumption when this sensor malfunctions.

Coolant Temperature Sensor 20576626 3944123 For Volvo Truck Fh12 Fh16 Fl6 Fm7 Fm12 – Part No 20576626 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryElectrical Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeCoolant Temperature Sensor
MaterialBrass, Thermistor, Plastic
ApplicationEngine Cooling System
Service LifeReplace every 2,000 hrs or as indicated by diagnostics
CompatibilityVolvo P/N 3944123
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing coolant temperature sensor include the temperature gauge reading erratically or staying at a constant low or high value. If ignored, the engine may overheat or run inefficiently, potentially leading to increased wear on internal components. Continued operation risks severe engine damage due to improper temperature regulation.

Installation Tip

Drain enough coolant to bring the level below the sensor port before removal to prevent spillage. Ensure the new sensor's threads are clean and apply thread sealant if recommended by the service manual.

Service Note

Inspect the radiator cap and hoses for signs of wear or leaks when replacing the coolant temperature sensor.